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Baydur® 426 IMR (Chopped Glass Preform)

Polyurethane (MDI)

Glass Fiber Reinforcement, 50%

Supplied by Bayer MaterialScience LLC

The technical datasheet with complete property values for Baydur® 426 IMR (Chopped Glass Preform) is available to members of the Prospector Plastics Database.
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Product Description
Baydur 426 IMR is a polyurethane high density structural RIM (HD SRIM) system used for automotive and light truck applications. This system is well suited for load bearing truck beds, tailgates, bumper beams, load floors, etc. It has excellent heat stability performance. Baydur 426 IMR composites can be used to replace steel or structural plastics for significant weight reduction and lower tooling costs. Due to its inherent nature, this system is corrosion and abrasion resistant.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Filler / Reinforcement 
  • Glass Fiber Reinforcement, 50% Filler by Weight
Features 
  • Good Abrasion Resistance
  • Good Corrosion Resistance
  • Good Thermal Stability
Uses 
  • Automotive Applications
  • Metal Replacement
 
Processing Method 
  • Reaction Injection Molding (RIM)
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
ASTM D792
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (72°F, 0.118 in)
psi
ASTM D638
Flexural Modulus (72°F, 0.118 in)
psi
ASTM D790
Flexural Strength (72°F, 0.118 in)
psi
ASTM D790
Thermal
Nominal Value
Unit
Test Method
CLTE - Flow (0.118 in)
in/in/°F
ASTM D696
Thermoset
Nominal Value
Unit
Test Method
Thermoset Components
     
Part A
 
 
Part B
 
 
Additional Information
Part A
  • Type: Isocyanate
  • Appearance: Dark brown liquid
  • Specific Gravity @ 25°C: 1.24
  • Viscosity @25°C: 200 cps
  • Flash Point PMCC: 199°C
  • NCO: 31.4 wt%

Part B
  • Type: Polyol
  • Appearance: Black liquid
  • Specific Gravity @ 25°C: 1.05
  • Viscosity @25°C: 2150 cps
  • Flash Point PMCC: 186°C
  • Hydroxyl Number: 657 KOH/g

Material Temperatures: 30 to 40°C
Mold Temperature: 80 to 100°C
Gel Time: 15 to 20 sec
Tack-Free Time: 75 to 90 sec
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Baydur® 426 IMR, Baydur 426 IMR, Baydur® 426 IMR (Chopped Glass Preform), Baydur 426 IMR Chopped Glass Preform, Baydur® , Baydur, Baydur426IMRChoppedGlassPreform, 426 IMR, 426 IMR (Chopped Glass Preform), 426 IMR Chopped Glass Preform, 426IMR, IMRChopped, ChoppedGlass, GlassPreform, 426IMRChoppedGlassPreform, Polyurethane, Polyurethane (MDI), Polyurethane MDI, PUR-MDI, PURMDI, PUR:MDI, PUR/MDI, PUR+MDI, PUR_MDI, PUR MDI, PUR, Bayer, PolyurethaneMDI, IMR426
Features
Features may also be described by the following terms: Good Thermal Stability, Good Corrosion Resistance, Corrosion Resistant, Good Abrasion Resistance, Abrasion Resistant.
Uses
Uses may also be described by the following terms: Automotive Applications, Automotive Sector.
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.